package top.sigetech.springcloud.controller;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import top.sigetech.springcloud.entity.Payment;
import top.sigetech.springcloud.lb.LoadBalancer;
import top.sigetech.springcloud.vo.CommonResult;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

@RestController
public class OrderController {

    private static final String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";
    @Resource
    private RestTemplate restTemplate;

    @Resource
    private LoadBalancer loadBalancer;

    @Resource
    private DiscoveryClient discoveryClient;

    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
        ResponseEntity<CommonResult> commonResultResponseEntity = restTemplate.postForEntity(PAYMENT_URL + "/payment/create", payment, CommonResult.class);


        return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment, CommonResult.class);

    }

    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
    }

    @GetMapping("/consumer/payment/lb")
    public String lb(){
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if (instances==null||instances.size()<=0){
            return null;
        }
        ServiceInstance serviceInstance = loadBalancer.instances(instances);
        URI uri = serviceInstance.getUri();

        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }

}
